Turner, Annabell · New York : D. Appleton and Company · leaf 81
SILK 67 of commerce. Most of the raw silk on the mar- ket is produced in China, Japan, France, and Italy. Throughout the succession of changes which take place in the insect, the greatest care has … Silkworm Culture to be exercised in regard to temperature, quiet, and food. After the moth lays the eggs they are collected and kept cool until time for incubation, which process takes place in heated compart- ments where the temperature is carefully regu- lated. The period of incubation lasts…
Textile fabrics · Textile industry
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
![An illustration from Episodes of insect life / by Acheta Domestica, [pseud.] ;edited and revised by J.G. Wood. (1879)](https://img.insideoutlibrary.com/img/200/wellcome-wellcome_b28066340-258-1.webp)
